Rope-holder.



D. V. BENGTSON.

ROPE HOLDER.

APPLICATION FILED APR. 2'1, 1910.

99%,Q89, Patented May 30, 1911. 4

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DANIEL V. BENGTSON, OF NEW YORK, N. Y.

ROPE-HOLDER.

sanosa.

Specification of Letters Patent.

Patented May 30, 1211.

Application filed April 27, 1910. Serial No. 557,940.

To all whom it may concern:

Be it known that I, DANIEL V. BENGTSON, a citizen of Sweden, andresident of the borough of Manhattan, in the county of New York andState of New York, have invented certain new and useful Improvements inRope-Holders, of which the following is a specification.

This invention relates particularly to that class of rope holderswherein the rope is clamped by two members which form a bight or loop ofthe rope held between them by the strain or weight thereon.

It consists in the novel construction of a relatively stationary socketmember, also of a movable jaw member therein, and the means by which thetwo members can be locked together.

The object of the invention is to provide an absolutely safe andreliable device for holding a rope fixedly at any desirable position inconnection with painters scaffolds and other apparatus, where life andlimb would be endangered by the slipping of the rope.

In the accompanying drawings which are hereby made a part of thisspecification: Figure 1 is a top plan view of the device showing indotted lines a portion of a rope held therein; Fig. 2 is a front view ofFig. 1 with some of the elements in a changed position; Fig. 3 is apartly broken left-hand side view of Fig. 2; Fig. l is a partly brokenright hand side view of Fig. 2 with an element shown in section; Fig. 5is a top plan view of a modified form of the invention with some of theelements omitted; Fig. 6 is a bottom view of Fig. 5; and Fig. 7 is asection on the line 77 of Fig. 5.

The invention includes a relatively stationary socket member comprisinga pair of opposite similarly formed sections 10 and 11 which are heldtogether by rivets 12 passing through ears 13 that project from the saidmembers 10 and 11. The socket is formed with a lateral gap 14 in whichthe rope is placed. The said gap 14 communicates with a box shapedrecess 15 into which the rope is forced by a movable jaw member 20. Thelatter is provided at its outer end with a rearwardly extending guide 21at right angles thereto, that is slidably supported in an opening 16formed with a fixed jaw 17 of the socket member. The inner end of themovable jaw 20 has a forwardly extending guide 22 also at right anglesthereto that is slidable within an opening 18 formed in a nose portion19 of the said socket.

The oifset of the rear and forward guides respectively 21 and 22 fromthe transverse jaw 20 prevent rotation or twisting of the said jawwithin the socket and they insure proper cooperation of the jaw 20 withthe box shaped recess 15.

The forward guide 22 extends beyond the nose portion 19 and is providedat its outer end with a swivel ring 24: by means of which the device isself adjusting to find its proper position when supported therefrom.Ahead 25 at the extreme end of the guide stem 22 holds the said swivelring 24; from disengagement therewith. The said guide stem 22 isthreaded for a specified distance and a thumb nut 26 is in engagementtherewith by means of which the movable member 20 is maintained in alocked position to securely grip or clamp the bight of the rope forcedinto the pocket or box shaped recess 15, as shown in Fig. 1. The thumbnut is represented in two positions in the latter named figure; the fulllines showing it retracted on the guide stem; and the dotted linesshowing it driven against the said nose portion to hold the clamp inposition.

In Fig. 2 the socket is shown open and the jaw 20 is lodged within agroove 27 formed with the lateral or fixed jaw 17. At a point oppositeto the said groove 27 the socket is provided with a similar but deepergroove 28 to receive the jaw 20 in its forward position.

In Figs. 5, 6 and 7 the socket member 10 is formed of a single piecewherein the movable member 20 is placed, and a cover plate 30 fastenedin position by screws 31 holds the member 20 in operative position.

In both forms of the device herein shown and described, the movablemember 20 is preferably provided with a roller 32 to minimize the wearon the rope, and the socket, 1011 or 10 has a pair of side lugs 33 intowhich holding or belaying pins 34 are removably secured transversely tothe general axis of the rope. The said pins are provided to give anadditional curvature contact, thereby forming two subordinate bights ofthe rope against the adjacent corners of the socket, as shown, forexample, in Fig. 5, Where the rope curves past the rounded corners 85 ofthe socket 10 The locking means employed in the modified form of thedevice is also arranged axially with respect to the movement of the jaw20 and comprises a set screw 36 that is threaded into the lower end ofthe socket 10 The said screw is brought up against the roller 32 toforce the rope into the recess 15.

The modified design represented in Figs. 5 to 7 is preferable when ropesor lines of varying sizes are used in the same socket, but for thepurpose of economy in manufacture the form of construction illustratedin Figs. 1 to 1 has the advantage in that no special cores are required,and the sections can be cheaply and securely riveted together after themovable jaw has been placed in position therein. Nevertheless, by aslight modification of the shape of the movable member 20, the socket10-11 can be made integral or in one piece, and the socket 10 as well.

From the foregoing description the operation of the invention can bereadily understood without further explanation as it can be seen that itis only necessary to place the part of the rope to be held into the gapof the socket member, then by the weight of the scaffold or pull on theline at the end of the swivel ring the jaw member is drawn up with therope in front of it into the box shaped recess, after which the thumbnut or set screw can be tightened up to permanently lock the rope inposition.

By means of my device the rope is bent around curved surfaces and firmlyheld by friction without the fibers thereof being cut or crushed. Thethumb nut or set screw provides a safe locking means upon the ropewithout possible opening of the jaw as may occur with cams and similarquick acting means, and which is very dangerous with suspended scaffoldssuch as painters use that are held by ropes and ordinary fastenings.

Having described my invention what I desire to secure by Letters Patentand claim is 1. A rope holder comprising a member adapted to besuspended at one end, an offset jaw at the other end of said suspensionmember, a guide extending rearwardly from said jaw and a socket having astraight sided outwardly open rope receiving gap connecting with one endof a closed sided recess, said socket being provided with openings inoffset alinement to receive said suspension member and said guide, andadapted to slide axially thereon, whereby a rope placed in the gap isforced by said jaw into the recess against the load on the rope.

2. A rope holder comprising a member adapted to be suspended at one end,an offset jaw at the other end of said suspension member, a guideextending rearwardly from said jaw, a socket having a straight sidedoutwardly open rope receiving gap connecting with one end of a closedsided recess, said socket being provided with openings in offsetalinement to receive said suspension member and said guide, and adaptedto slide axially thereon, lugs projecting from the sides of said socketadjacent to the gap, and holding pins removably secured in said lugstransversely to the axis of said suspension member and adapted to formthe rope in subordinate bights on either side of said jaw to increaseits frictional contact when ropes of varying sizes are placed in the gapto be forced by said jaw into the recess of said socket against the loadon the rope.

Signed at the borough of Manhattan in the county of New York and Stateof New York this 26th day of April, A. D. 1910.

DANIEL V. BENGTSON.

Witnesses H. G. KARLsoN, WM. H. GEE.

Copies of this patent ma; be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

